Cartridge-magazine.



L. W. HILGENDORF.

CARTRIDGE MAGAZINE.

APPLICATION FILED JAN- 4,1917.

Patented May 22, 1917.

INVENTOR A ITOR/VEYS LOUIS WESLEY mnemmonr, or FOUNTAIN, conoiumo.

can'rninen-meazmn.

Specification of Letters meat. Pate ted May 22, 1917.

Application filed J'anuary4, 1917. 'S eri alNo.140,53Q.

To all whom/ it may concern:

Be it known that I, LOUIS WESLEY H n- GEN-DORE, a citizen of the'UnitedStates, and a resident of Fountain, in the county of .El Paso and Stateof Colorado, have invented certain new and useful Improvements in*Oartridg e-Magazines, of which the following is a specification.

My invention relates'to firearms, of the repeater type, and the'mainobject thereof is to double the magazine capacity and to provide simplethough efficient means for instantly and automatically throwing anexhausted portion of the magazine outof.

operative position and moving the unused stack of cart-ridges intooperative position.

My invention is fully described in the following specification, of whichthe accompanying drawings form a part, in which :like characters referto like parts in each of the yiews, and in which Figure 1 is a sideelevation of a firearm, partly in section, provided with my invention; r

magazine shown in section;

Fig. 3 is a view similar to Fg. 2 but showing the cartridges shown in Fig. 2 asall ejected to permit the magazine movement to bring the othercartridge stack into operative, position; 7

Fig. 4 is av section taken on the line 4-1 of Fig. 2, showing theinitial cartridge stack in operative position;

Fig. 5 is a section taken on the line 55 of Fig. 3, showing the secondcartridge stack in operative position; and

. Fig. 6 is a fragmentary interior view of the firearm, as on'the line6'6 of Fig. 1.

Referring to the drawings, 7 represents a firearm having 'a magazinereceiving space 8 and a barrel 9, no effort having been made toillustrate the firing mechanism, nor the ejecting mechanism, as theyform nopa'rt of my invention, but attention is drawn to an inclinedgroove 10 at the forward portion of the space 8 cut-into the frame ofthe firearm. r

Vertically, slidable upwardly into the space 8, isa magazine 11 plvotedat 12 to a base plate 13 and having a central parti tion 14 forming twocom artments' 15 and 16'for separate stacks 1 and 18 of car tridges,each stack being moved upwardly I therefor, means engaged in said groovefor by means of a spring 19 and follower 20 the latter of which has anlnclmed free end 21 adapted, when forced downwardly by the introductionof the cartridges in. the compartment 15, to force aspring bar 22forwardly of saidcompartment whereby a button 23 thereon is forcedoutwardly 1 through a suitable opening in the front wall of saidcompartment, the cartridges in said compartment preventing rearwardmove- I Fig.2 is a similar view with the cartridge ment of saidspringbar 22.

When the magazine is introduced into the space 8 the forwardly forcedbutton 23 enters the inclined groove 10 and rocks the magazine upon itspivot 12 against the action ofa spring. 24 into the position shown inFig. 4, whereby the upper cartridge in the stack 17 is "in line formovement into firing position and subsequent ejection, all of' thecartridges in this stack being'succes- 'sively discharged and ejected inthe usual way and, when the compartment 15 is entirely empty ofcartridges,"there is nothing to ,prevent retraction of the spring bar22to draw the button 23 outof the groove 10 in which 'it had.restedhitherto.

Upon suchretraction of the button 23,

the spring 24: forces the magazine into the position shown in Fig. 5 topresent thecartridges in the stack 18 successively to the firing andejecting mechanisms and, upon the exhausting of this stack,- themagazine .may be withdrawn frorn the firearm and refilled, it beingnoted that the button 23 is positively moved into groove engaging po-"sition as long as there-is one, or more, car tridges in thecompartment15 and is positively retracted when this compartment isemptied, the action. of said button thus being entirely ,under thecontrolv of the cartridges in the compartment 15.

My inventionis very simple and, with the mer'eaddition of the groove 10to the firearm, is readily adapted to arms of difierent types and makes,and I reserve the right to make such structural changes over the formshown and described as properly come within'the spirit ofmy inventionand within the scope of he appended claims.

Havin fully described my invention, what I claim as new, and desire tosecure byLetters Patent, is-:-

1. In a firearm having a magazine receiving space and a groove at oneendvof said space; a magazine divided into a plurality of cartridgecompartments, a pivotal mount bringing one of said compartments intoca!- the cartridges in one compartment for carrying the same intocartridge feeding position, and automatic means operable upon theexhaustion of said last named compartment for bringing the othercompartment into cartridge feeding position.

3. In a firearm having a magazine receiving space and a groove at oneend ofsaid space; a rockable magazine divided into two cartridgecompartments, means controlled the cartridges in one compartmentandoperable in said groove for bringing said compartment into cartridgefeeding position, and automatic means operable upon the exhaustion ofsaid last named compartment for bringing the other compartment intocartridge feeding position.

4. In a firearm having a magazine receiv-' 111g space and a groove atone end thereof; a

rockable magazine divided. into two cartridge compartments, a springretracted button forced into groove engagement by the cartridges in oneof said compartments, and

Ya spring for rocln'ng said magazine on its pivot to bring the othercompartment into cartridge feeding position upon the exhaustion of saidpreviously named compartment and upon the retraction of said button outof groove engagement.

5. In a firearm having a magazine receiving space and a groove at oneend thereof; a rockable magazine divided into compartments, a spring barin one compartment; a button thereon, said button being forced outwardlyof said magazine to engagement with said groove upon the insertion ofcartridges into said compartment and held in such position until saidcompartment is emptied of cartridges to permit said bar to retract saidbutton, and a laterally operable spring for rocking said magazine .tobring the other compartment into cartridge feeding position upon thewretraction of said button.

6. As an article of manufacture, for use in a firearm, a two compartmentmagazine, a support therefor. a pivotal connection therefor, a'- springcontrolled follower in each compartment, a spring bar secured in onecompartment adapted to be forced toward the end of said compartment uponthe depression of the respective follower by the introduction ofcartridges, and a button on said bar held outwardly of said magazinewhile said last named compartment contains a cartridge.

LOUIS-WESLEY HILGENDORFV

